One of the Cosmic Era's most populous and vibrant cities, Novo São Paulo also has one of the widest economic gaps with an underside illustrating its crushing poverty.
Some historians argue that the arcologies that remained active after the Resource Wars were not the cradles of the Second Renaissance, but fortresses that prolonged the Second Dark Age
One of the largest and most important military bases of the Atlantic Federation
30 locations of interest in the Cosmic Era
The island city state of Seng Chiu is perhaps better remembered as Singapore
A build a mile tall with 50,000 people in has a lot of room for action and intrigue
The Rock of Gibraltar, once a stalwart of British power, the gate to the Mediterranean, now is a fortress for the Eurasian Alliance. It's fair teeming with neo-Soviets and submarines.
A portmanteau of the words Architecture and Ecology, arcologies are megastructres that are built with an eye towards environmentally friendliness.
Teenagers who run away from home to live in the wilderness may become feral. As they become more and more feral, they gain some supernatural powers (a la Peter Pan - ability to fly, things they imagine come true - possibly quite powerful), but at the expense of their humanity and ability to speak, comprehend complex subjects, etc. Maybe they have a leader: the most feral of them all.
A regression into a fantasy childlike state.